A gooseneck low-bed semi-trailer

Abstract

The utility model provides a gooseneck low-bed semi-trailer, which belongs to the technical field of semi-trailers, and includes a trailer floor frame, a pair of front matching wheels and a pair of rear matching wheels are fixedly connected to the bottom of the trailer floor frame, a mesh frame is arranged inside the trailer floor frame, a pair of limit clamping frames are fixedly connected to the trailer floor frame, a threaded rod is rotatably connected to the trailer limit frame, and two limit clamping frames are located on both sides of the threaded rod. The utility model arranges a mesh frame inside the trailer floor frame, and compared with the traditional steel plate floor, while ensuring the bearing strength, the lightweight requirement of the semi-trailer is guaranteed. At the same time, in order to enable the semi-trailer to simply limit the cargo when loading the cargo, an adjustable main baffle and side baffle adjustment mechanism are arranged. Compared with the traditional cargo compartment, on the basis of meeting the lightweight requirement, the functional shape is also greatly improved, so that the compartment volume of the semi-trailer is variable.

Description

Technical Field

[0001] The utility model belongs to the technical field of semi-trailers, in particular to a gooseneck low-bed semi-trailer. Background Art

[0002] A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. Semi-trailers are classified in a variety of ways. Due to the rapid development of the domestic logistics industry in recent years and the increasing requirements for high efficiency and timeliness, the demand for semi-trailer transportation industry is increasing.

[0003] According to the search, the patent document with publication number CN217477400U discloses a gooseneck low-bed semi-trailer, including a trailer floor and a transport box. The trailer floor includes a main crossbeam and a secondary longitudinal beam. The main crossbeam and the secondary longitudinal beam are cross-welded. A movable splint is arranged on the secondary longitudinal beam. A limiting through hole is arranged on the movable splint. A threaded through hole 1 is arranged above the limiting through hole. A threaded through hole 2 is arranged between the two limiting through holes. A threaded through hole 2 is internally threaded with a threaded rod, and a limiting through groove is arranged in the threaded rod.

[0004] Since semi-trailer loads have high requirements for roads, and in consideration of transportation costs and road maintenance costs, lightweight and large transportation volume of semi-trailers are the general trend. The existing semi-trailer designs still lack lightweight designs, and the body cargo box design is not simple enough, the functional scalability is insufficient, and it cannot be appropriately adjusted according to the amount of cargo. Utility Model Content

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gooseneck low-bed semi-trailer comprises a trailer floor frame, a pair of front matching wheels and a pair of rear matching wheels are fixedly connected to the bottom of the trailer floor frame, a mesh frame is arranged inside the trailer floor frame, a pair of position-limiting clamping frames are fixedly connected to the trailer floor frame, a threaded rod is rotatably connected to the trailer position-limiting frame, two position-limiting clamping frames are located at both sides of the threaded rod, a main baffle is threadedly connected to the threaded rod, and the main baffle is slidably connected to the two position-limiting clamping frames;

[0007] A driving mechanism is arranged at the bottom of the trailer floor frame, and a side stop adjustment mechanism is arranged at the top of the trailer floor frame.

[0008] Preferably, the driving mechanism comprises a pair of rotating plates fixedly connected to the bottom of the trailer floor frame, a rotating shaft is rotatably connected inside the rotating plate, a driven bevel gear is coaxially fixedly connected to the rotating shaft, and a rotating handle is rotatably connected to one of the two rotating plates.

[0009] Preferably, the rotating handle is coaxially fixedly connected to the rotating shaft, the threaded rod passes through the trailer floor frame and is coaxially fixedly connected to a driving bevel gear, and the driving bevel gear is meshed with the driven bevel gear.

[0010] Preferably, the side stop adjustment mechanism comprises two pairs of vertical support frames fixedly connected to the top of the trailer floor frame, and the vertical support frames are hollow in design.

[0011] Preferably, a limiting clamping plate is fixedly connected between the two vertical support frames on one side, and a limiting sliding plate is slidably connected between the two vertical support frames on one side.

[0012] Preferably, six pairs of side stop bars are slidably connected between the position-limiting clamping plate and the position-limiting sliding plate, and each pair of the side stop bars are cross-arranged and coaxially rotatably connected.

[0013] Preferably, a screw rod is rotatably connected inside the vertical support frame, the limiting sliding plate is threadedly connected to the screw rods in the vertical support frames on both sides, and a hexagonal bolt seat is rotatably connected to the top of the vertical support frame, and the hexagonal bolt seat is coaxially fixedly connected to the screw rod.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model arranges a mesh frame in the trailer floor frame, which ensures the lightweight requirement of the semi-trailer while ensuring the load-bearing strength compared to the traditional steel plate floor. At the same time, in order to simply limit the cargo when the semi-trailer is loaded, an adjustable main baffle and side baffle adjustment mechanism are provided. Compared with the traditional cargo hold, on the basis of meeting the lightweight requirement, the functional shape is also greatly improved, so that the volume of the semi-trailer compartment is variable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a gooseneck low-bed semi-trailer proposed by the utility model;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of a driving mechanism of a gooseneck low-bed semi-trailer proposed by the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0019] Figure 4 The utility model is a schematic diagram of a partial front view of the internal structure of a vertical support frame of a gooseneck low-bed semi-trailer.

[0020] In the figure: 1 trailer floor frame, 2 front supporting wheel, 3 rear supporting wheel, 4 mesh frame, 5 limit clamping frame, 6 threaded rod, 7 main baffle, 8 rotating plate, 9 driven bevel gear, 10 rotating handle, 11 driving bevel gear, 12 vertical support frame, 13 limit clamping plate, 14 limit sliding plate, 15 side baffle strip, 16 screw rod, 17 hexagonal bolt seat. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Reference Figure 1-Figure 4 , a gooseneck low bed semi-trailer, comprising.

[0023] A trailer floor frame 1, a pair of front matching wheels 2 and a pair of rear matching wheels 3 are fixedly connected at the bottom of the trailer floor frame 1, a mesh frame 4 is arranged inside the trailer floor frame 1, and the mesh frame 4 is arranged inside the trailer floor frame 1. Compared with the traditional steel plate floor, the mesh frame 4 ensures the lightweight requirement of the semi-trailer while ensuring the bearing strength. A pair of limit clamping frames 5 are fixedly connected to the trailer floor frame 1, and a threaded rod 6 is rotatably connected to the trailer limit frame 1. The two limit clamping frames 5 are located on both sides of the threaded rod 6, and a main baffle 7 is threadedly connected to the threaded rod 6, and the main baffle 7 is slidably connected to the two limit clamping frames 5;

[0024] A driving mechanism is provided at the bottom of the trailer floor frame 1, and a side stop adjustment mechanism is provided at the top of the trailer floor frame 1;

[0025] The driving mechanism includes a pair of rotating plates 8 fixedly connected to the bottom of the trailer floor frame 1, a rotating shaft is rotatably connected inside the rotating plate 8, a driven bevel gear 9 is coaxially fixedly connected to the rotating shaft, a rotating handle 10 is rotatably connected to one of the two rotating plates 8, the rotating handle 10 is coaxially fixedly connected to the rotating shaft, the threaded rod 6 passes through the trailer floor frame 1 and is coaxially fixedly connected to the driving bevel gear 11, the driving bevel gear 11 and the driven bevel gear 9 are meshed with each other, when the position of the main baffle 7 needs to be adjusted, the rotating handle 10 can be manually shaken, when When the handle 10 is rotated, the active bevel gear 11 coaxially fixedly connected to the handle 10 through the rotating shaft will rotate, the driven bevel gear 9 meshing with the active bevel gear 11 will rotate, the threaded rod 6 coaxially fixedly connected to the driven bevel gear 9 will rotate, and the main baffle 7 threadedly connected to the threaded rod 6 can move. The limit clamping frame 5 can ensure the stability of the main baffle 7 when it moves. The moving distance of the main baffle 7 can be appropriately adjusted according to the volume of the cargo, so that the semi-trailer does not need to perform complicated operations such as strapping and fixing.

[0026] The side block adjustment mechanism includes two pairs of vertical support frames 12 fixedly connected to the top of the trailer floor frame 1, the vertical support frames 12 are hollow in design, a limited position clamping plate 13 is fixedly connected between the two vertical support frames 12 on the corresponding side, a limited position sliding plate 14 is slidably connected between the two vertical support frames 12 on the corresponding side, six pairs of side block strips 15 are slidably connected between the limited position clamping plate 13 and the limited position sliding plate 14, each pair of side block strips 15 are cross-arranged and coaxially rotatably connected, a screw rod 16 is rotatably connected in the vertical support frame 12, and the limited position sliding plate 14 is connected to the screw rods in the vertical support frames 12 on both sides. 16 threaded connection, the top of the vertical support frame 12 is rotatably connected with a hexagonal bolt seat 17, the hexagonal bolt seat 17 is coaxially fixedly connected with the screw rod 16. When the goods are stacked at a high height, in order to ensure the stability of the goods during transportation, the hexagonal wrench can be inserted into the hexagonal bolt seat 17 on each vertical support frame 12 and rotated, and the screw rod 16 coaxially fixedly connected with the hexagonal bolt seat 17 will rotate, and the limiting sliding plate 14 threadedly connected with the screw rod 16 will move upward or downward. When the limiting sliding plate 14 moves upward, the side block strip 15 will open to block the goods.

[0027] The functional principle of the utility model can be explained through the following operation modes:

[0028] A mesh frame 4 is arranged in the trailer floor frame 1, which ensures the lightweight requirement of the semi-trailer while ensuring the bearing strength compared with the traditional steel plate floor;

[0029] When the position of the main baffle 7 needs to be adjusted, the rotating handle 10 can be manually shaken. When the rotating handle 10 is rotated, the active bevel gear 11 coaxially fixedly connected to the rotating handle 10 through the rotating shaft will rotate, and the driven bevel gear 9 meshing with the active bevel gear 11 will rotate, and the threaded rod 6 coaxially fixedly connected to the driven bevel gear 9 will rotate, and the main baffle 7 threadedly connected to the threaded rod 6 can move. The limit clamping frame 5 can ensure the stability of the main baffle 7 when it moves, and the moving distance of the main baffle 7 can be appropriately adjusted according to the volume of the cargo, so that the semi-trailer does not need to perform complicated operations such as strapping and fixing;

[0030] When the goods are stacked at a high height, in order to ensure the stability of the goods during transportation, the hexagonal wrench can be inserted into the hexagonal bolt seat 17 on each vertical support frame 12 and rotated. The screw rod 16 coaxially fixed to the hexagonal bolt seat 17 will rotate, and the limiting sliding plate 14 threadedly connected to the screw rod 16 will move upward or downward. When the limiting sliding plate 14 moves upward, the side block strip 15 will open to block the goods.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A gooseneck low-bed semi-trailer, comprising a trailer floor frame (1), characterized in that: A pair of front matching wheels (2) and a pair of rear matching wheels (3) are fixedly connected to the bottom of the trailer floor frame (1); a mesh frame (4) is arranged inside the trailer floor frame (1); a pair of position-limiting clamping frames (5) are fixedly connected to the trailer floor frame (1); a threaded rod (6) is rotatably connected to the trailer floor frame (1); two position-limiting clamping frames (5) are located on both sides of the threaded rod (6); a main baffle (7) is threadedly connected to the threaded rod (6); and the main baffle (7) is slidably connected to the two position-limiting clamping frames (5); A driving mechanism is arranged at the bottom of the trailer floor frame (1), and a side stop adjustment mechanism is arranged at the top of the trailer floor frame (1).

2. A gooseneck low bed semi-trailer according to claim 1, characterized in that: The driving mechanism comprises a pair of rotating plates (8) fixedly connected to the bottom of the trailer floor frame (1), a rotating shaft being rotatably connected inside the rotating plates (8), a driven bevel gear (9) being coaxially fixedly connected to the rotating shaft, and a rotating handle (10) being rotatably connected to one of the two rotating plates (8).

3. A gooseneck low bed semi-trailer according to claim 2, characterized in that: The rotating handle (10) is coaxially fixedly connected to the rotating shaft, the threaded rod (6) passes through the trailer floor frame (1) and is coaxially fixedly connected to a driving bevel gear (11), and the driving bevel gear (11) and the driven bevel gear (9) are meshed with each other.

4. A gooseneck low bed semi-trailer according to claim 1, characterized in that: The side stop adjustment mechanism comprises two pairs of vertical support frames (12) fixedly connected to the top of the trailer floor frame (1), and the vertical support frames (12) are hollow in design.

5. A gooseneck low bed semi-trailer according to claim 4, characterized in that: A limited position clamping plate (13) is fixedly connected between the two vertical support frames (12) on the corresponding side, and a limited position sliding plate (14) is slidably connected between the two vertical support frames (12) on the corresponding side.

6. A gooseneck low bed semi-trailer according to claim 5, characterized in that: Six pairs of side blocking strips (15) are slidably connected between the position-limiting clamping plate (13) and the position-limiting sliding plate (14), and each pair of the side blocking strips (15) are cross-arranged and coaxially rotatably connected.

7. A gooseneck low bed semi-trailer according to claim 5, characterized in that: A screw rod (16) is rotatably connected inside the vertical support frame (12), the limiting sliding plate (14) is threadedly connected to the screw rods (16) in the vertical support frames (12) on both sides, and a hexagonal bolt seat (17) is rotatably connected to the top of the vertical support frame (12), and the hexagonal bolt seat (17) is coaxially fixedly connected to the screw rod (16).

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